fix: add HTTP URL detection to prevent processing nostr URIs in URLs

Enhanced protection to also skip nostr URIs that are part of HTTP/HTTPS
URL patterns, not just markdown link URLs. This addresses timing issues
where the source markdown may contain plain URLs with nostr identifiers
before they're formatted as markdown links.

The detection checks if a nostr URI appears after 'https://' or 'http://'
and is part of a valid URL continuation to avoid false positives.

src/utils/nostrUriResolver.tsx

@@ -211,6 +211,7 @@ function replaceNostrUrisSafely(
   }
   
   // Replace nostr URIs, but skip those inside link URLs
+  // Also check if nostr URI is part of any URL pattern (http/https URLs)
   // Callback params: (match, encoded, type, offset, string)
   let nostrMatchCount = 0
   const result = markdown.replace(NOSTR_URI_REGEX, (match, encoded, _type, offset, fullString) => {
@@ -220,7 +221,7 @@ function replaceNostrUrisSafely(
     console.log('[nostrUriResolver]   - Match:', match)
     console.log('[nostrUriResolver]   - Encoded:', encoded)
     console.log('[nostrUriResolver]   - Position:', offset, 'to', matchEnd)
-    console.log('[nostrUriResolver]   - Context around match:', fullString.slice(Math.max(0, offset - 30), matchEnd + 30))
+    console.log('[nostrUriResolver]   - Context around match:', fullString.slice(Math.max(0, offset - 50), matchEnd + 50))
     
     // Check if this match is inside a markdown link URL
     // Check both start and end positions to ensure we catch the whole match
@@ -232,7 +233,7 @@ function replaceNostrUrisSafely(
         (offset >= r.start && offset < r.end) || 
         (matchEnd - 1 >= r.start && matchEnd - 1 < r.end)
       )
-      console.log('[nostrUriResolver] SKIPPING replacement - inside link URL')
+      console.log('[nostrUriResolver] SKIPPING replacement - inside markdown link URL')
       console.log('[nostrUriResolver]   - Match range:', offset, 'to', matchEnd)
       console.log('[nostrUriResolver]   - Link URL range:', range)
       console.log('[nostrUriResolver]   - Link URL content:', range ? markdown.slice(range.start, range.end).slice(0, 200) : 'N/A')
@@ -240,7 +241,27 @@ function replaceNostrUrisSafely(
       return match
     }
     
-    console.log('[nostrUriResolver] REPLACING nostr URI (NOT inside any link URL)')
+    // Also check if the nostr URI is part of an HTTP/HTTPS URL pattern
+    // This catches cases where the source markdown has URLs like https://example.com/naddr1...
+    // before they're formatted as markdown links
+    const contextBefore = fullString.slice(Math.max(0, offset - 200), offset)
+    const contextAfter = fullString.slice(matchEnd, Math.min(fullString.length, matchEnd + 10))
+    
+    // Check if we're inside an http/https URL (looking for https?:// pattern before the match)
+    // and the match is followed by valid URL characters (not whitespace or closing paren)
+    const urlPatternBefore = /https?:\/\/[^\s)]*$/i
+    const isInHttpUrl = urlPatternBefore.test(contextBefore)
+    const isValidUrlContinuation = !contextAfter.match(/^[\s)]/) // Not followed by space or closing paren
+    
+    if (isInHttpUrl && isValidUrlContinuation) {
+      console.log('[nostrUriResolver] SKIPPING replacement - appears to be part of HTTP URL')
+      console.log('[nostrUriResolver]   - Context before:', contextBefore.slice(-80))
+      console.log('[nostrUriResolver]   - Context after:', contextAfter)
+      // Don't replace - return original match
+      return match
+    }
+    
+    console.log('[nostrUriResolver] REPLACING nostr URI (NOT inside any link URL or HTTP URL)')
     // encoded is already the NIP-19 identifier without nostr: prefix (from capture group)
     const replacement = getReplacement(encoded)
     console.log('[nostrUriResolver]   - Replacement:', replacement)